Savings card is the predecessor of debit card. Commercial banks basically do not issue savings cards, only debit cards. It can be said that the debit card is an upgraded version of the savings card. The simple understanding is that debit cards have the functions of savings cards, and debit cards have many functions that savings cards do not have.

The origin of debit card and credit card names is mainly related to accounting rules. In accounting rules, "debit" means the increase of assets and "loan" means the increase of liabilities. Debit cards are savings cards, savings cards carry assets, and credit cards are credit cards. Every time a credit card is used, it will increase a debt.